摘要
为了确定穿层深孔控制爆破施工过程中爆破孔间距的大小,需要考察控制爆破过程中产生裂隙场半径的大小。以平煤十二矿己15-31010工作面为试验点,从理论计算、数值模拟及现场试验3个方面对裂隙场的半径进行计算测试,并对结果进行对比分析,从而得出了深孔控制爆破的有效影响半径。结果表明穿层深孔控制爆破过程中爆破孔有效间距为5-7 m时最佳。
It needs to inspect the scale of the fracture field in order to determine the space between two border upon holes during the process of controlled blasting strata penetration. This article took the Ji15 - 31010 working face in No 12 Coal Mine of PingMei Coal Mining Group as a test point and systemic study from three aspects, which contains the theoretical analysis, numerical simulation and field experiment, what is more, it comparison and analysis on those results carried out, consequently, it has educed a effective influence radius of the controlled blasting strata penetration. Result proves that, the best space was between 5 to 7 meters during the process of controlled blasting strata penetration.
出处
《煤矿安全》
CAS
北大核心
2008年第11期11-14,共4页
Safety in Coal Mines
基金
国家自然科学基金资助项目(50534090
50574093)
国家重点基础研究发展计划资助项目(2005cb221506)
国家"十五"重点科技攻关资助项目(2005BA813B07)
国家科技支撑计划资助项目(2006BAK03B0403)
关键词
穿层
控制爆破
裂隙场
影响半径
through strata
controlled blasting
fracture field
influencing radius
